NFHS - Fights

[MRH]

A fellow crew had a game last week in which a fight broke out shortly after the game began. Apparantly, A had fumbled and one of A's RB's felt he was hit after the play was dead and came up swinging. This turned into pretty much a brawl involving several players.

My question is for those of you who have had a multi-player fight break out during the game. How did you handle it? What would you do differently if it happened again?

I plan on making this part of my pre-game, especially in games which we know a bitter rivalry exists.